Ceiling construction.



l). ALLNIO.

CEILING GONSTRUGTION.

APPLIOATION FILED AUG. 15, 190e.

Patented Mar. 2, 1909.

A TTOHNEYS .sans onere.

PETER ALLINIO, OF SAN PABLO, CALIFORNIA.

CEILING CONSTRUCTION.

l l No. 9114,102.

Specification of Letters Patent.

Patented March 2, 1909.

Applicata@ mea August 15, 190s. serial No. 448,696.

To all whom it may concern:

Be it known that I, PETER ALLINIO, a subject of -the King of Italy, and a resident of San Pablo, in the county of Contra Costa andiI 'State of California, have invented a new and Im roved Ceiling Construction, of which the follldwing is a full, clear, and exact description.

This invention relates to certain improvements in ceiling construction and more particularly to the means employed for supportin metallic lath below concrete lioors.

gIhe object of my invention is to eliminate the urring-strips and support the lath directly from the concrete constituting the floor and at a distance therefrom. The construction is thus rendered lire-proof, the total thickness is reduced and the plaster may be applied immediately after the wooden forms are removed.

Reference is to be had to the accom anying drawings forming apart of this s eci cation, in which similar characters of re erence indicate corresponding parts in all the views.

Figure 1 is a plan view of a section of metallic lath which I may employ Fig. 2 is a side I so view of one ofthe binding or tying strips employed; Fig. 3 is a vertical section through a portion of a wooden frameshowing the lathlng in position and ready to receive the ooncrete; Fig. 4 is a vertical section through the concrete floor, ready to receive the plaster on the lathing therebeneath, and Fig. 5 is a vertical section through a portion of the cornplete structure with the plaster in place.

In carrying out my invention, I employ any suitable form of metallic lath, as, for instance, sheets 10 of expanded metal of the type illustrated in Fig. I. To this expanded metal lathing I secure a plurality of ties, sup- Slorts or binding strips 11, substantially as ustrated in Fig. 2. provided with a plurality of teeth 12 a ong the lower edge thereof, and the main body portion of each strip is provided with a plurality of apertures or perforations 13. The tying, binding or supporting strips 11 are placed either transversely or longitudinally of the lathing with the teeth 12 extending through apertures in the latter. Adjacent teeth are then bent in opposite directionsto securely fasten the strips to the sheet. In

j employing this lathing the wooden forms In Fig. 3 I have illustrated vone I-beam14, i

Each of these stri s is` serving to support the concrete of the door, and beneath this ll-beam I mount a temporary wooden -form 15, the upper surface of the bottom of which comes at a slight distance below the lower surface of the I-beam. The lathing is then placed directly upon the bottom of the wooden form and the stri s 11 extend upwardly therefrom, but terminate at a lower level than the upper surface of the I-beam. The wooden form is then partially filled with a layer of sand 16, so as to completely cover the lathing and the lower portion of each of the binding strips 11. The mold is then ready to receive the concrete 1'7, which is carefully cured in so as not to displace the sand. oncrete of suiicient stiiiness or hardness is employed, so that it does not permeate the sand to any material extent. As soon as the concrete is hardened the wooden form may be removed and the layer of sand will pass down throu h the apertures in the expanded metal lathmg, so as to leave said lathing spaced from the concrete 17 but rigidly supported in respect thereto by means of the tying strips 11. The laterally-bent teeth of the said strips support the lathing and the apertures 1n sald strips permit the concrete to pass therethrough, so as to firmly hold the strips within the concrete. As soon as the wooden form andthe sand have been removed, the plaster 18 may be applied to the metal lathing at once, without the insertion of any furringstrips or other auxiliary construction. It 1s not necessary to wait for the concrete to dry, other than suliicient to permit ofthe removal. of the wooden form; thus considerable time may be saved in the construction of a large v building.

The absence of the iurring-strips renders the construction thoroughly fire-proof, and in case the lath is spaced from the concrete to the extent indicated in Figs. 4 and, 5 an 'air chamber is left in between the plaster and the concrete, which forms" an insulation against the passage of heat, as well as noises. Preferably, the strips 11 are provided with a series of openings 13 adjacent their lower edges, whereby the air may circulate from one air chamber to the next. It desired, a smaller quantity of sand may be employed, so that the lathing will come closely adjacent the concrete and plaster and pass through the lathing directly into contact with the concrete.'

I have referred sto-the usevvof sandI as a l material for preventing the concrete from coming into Contact with the lath but it is evident that any other suitable material might be employed which could be removed in whole or in part through the openings in the lathing.

Having thus described my invention, I claim as new and desire to secure by Letters Patent: v

In combination, a concrete iiooring, binding strips having perforations therethrough and terminating in teeth or tongues at their lower edges, said binding strips having their upper edges embedded Within said concrete and held therein by the engagement of the concrete with certain of said perforations, retieulated metal lathing secured to the said lathing and permitting a circulation of the s aces intervening between said ceiling and oorlng.

In witness whereof I have signed my name' to this specification in the presence of two subserlbmg wltnvs-ses.

PETER ALLINIO. Witnesses J. W; GALvIN,. P. J. RAGAN.

`air through said binding strips and within 25` 

